M-V850E-IA4 Renesas Electronics America, M-V850E-IA4 Datasheet - Page 507

• Manufacturer Part Number: M-V850E-IA4
• Description: KIT EVAL V850E IA4 UPD70F3186
• Manufacturer: Renesas Electronics America

Specifications of M-V850E-IA4

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(6) Operational amplifier n control register 1 (OPnCTL1) (n = 0, 1)
Notes 1. In the V850E/IA3, this bit can be set only when A/D converter 1 is used. This bit must be cleared to
Cautions 1. A stabilization time of 50
The OPnCTL1 register is an 8-bit register that controls the operation of the overvoltage detection comparator
and indicates the output status of the overvoltage detection comparator.
This register can be read or written in 8-bit or 1-bit units. However, bit 0 is read-only.
Reset sets this register to 00H.
2. The OPnCMP bit is cleared to 0 when the input voltage is lowered to the level where overvoltage is
2. The input voltage range for the comparator is 0.1AV
0 when A/D converter 0 is used.
not detected.
V850E/IA3
V850E/IA4
OPnCTL1
m = 0, 1
is used with the input voltage range exceeding 0.5AV
chip operational amplifier.
amplifier, refer to CHAPTER 23
CHAPTER 24 ELECTRICAL SPECIFICATIONS (V850E/IA4).
n = 0, 1
n = 0, 1
m = 1
After reset: 00H
OPnCEN0
OPnCMP
OPmCEN2
OPnCEN1
0
1
0
1
0
1
0
1
0
Note 2
Note 1
CHAPTER 12 A/D CONVERTERS 0 AND 1
OPmCEN2
Disable operation
Enable operation
Disable operation
Enable operation
Disable operation
Enable operation
Comparator output = 0 (no overvoltage detection)
Comparator output = 1 (overvoltage detection)
R/W
μ
Note 1
User’s Manual U16543EJ4V0UD
s after comparator operation is enabled.
OPnCEN1 OPnCEN0
Address: OP0CTL1 FFFFF261H, OP1CTL1 FFFFF269H
For the input voltage range of the on-chip operational
Operation control of comparator 2
Operation control of comparator 1
Operation control of comparator 0
ELECTRICAL SPECIFICATIONS (V850E/IA3) and
Comparator output status
0
DD
DD
to 0.5AV
, it is recommended to use the on-
0
DD
. When the comparator
0
OPnCMP
505